Type-writing machine.



0. W. WALKER.

TYPE WRITING MACHINE. APPLICATION FILED AUG 1, 1907.

Patented Feb. 20, 1912.

6 SHEETS-SHEET 1.

Fl 6.. I.

INVENTDR:

4 h vwamva HIS ATTORNEY \A/ITNESEE5= 0. W. WALKER. TYPE WRITING MACHINE.

APPLICATION PILEDAUG. 1, 1907.

Patented Feb. 20, 1912,

6 SHEETS-SHEET 2 F-IIS ATTURNEY G. W. WALKER.

,TYPE WRITING MACHINE.

APPLICATION FILED we. 1, 1907.

Patented Feb. 20, 1912.

6 SHEETS-SHEET 3- |NVENTDR= 1-115 ATTEJRNEY WITNESSES:

0. W. W KER.- TYPE WR ITING MACHINE. ,APPLIGATION-IILED AUG. 1, I907.

Patentefi Feb. 20, 1912.

6 SHEETS-SHEET 4.

a v. D E T M m w D v MW m) A 3/ 2 E 3 8 M W 5 E 5 5 E N u W u. w. WALKER. TYPE WRITING MACHINE. APPLICATION FILED AUG. 1, 1907.

Patented Feb. 20, 1912 6 SHEETS SHEET 5.

, IN ENTUR= If HIE A'TTURNEm \A/ITNEEEE G. W. WALKER.

TYPE WRITING MACHINE;

APPLICATION FILED AUG. 1', 1907.

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UNITED STATES PATENT OFFICE.

CHARLES W. WALKER, 0F STZBATFORD, CONNECTICUT, ASSIGNOR TO-W YCKOFF, SEA- MANS &. BENEDICT, 0F ILION, NEW YQRK, A CORPORATION OF NEW YORK.

'rYrnwnrrme MACHINE.

To all whom it mycorwem:

Be it known that I, CHARLES XV. WALKER, citizen of the United States, and resident of Stratford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Type.

iwriting Machines, of which the following is a specification.

, specification and particularly pointed out in theappended claims.

In the accompanying drawings wherein like reference characters indicate corresponding pa s in the various views, Figure 1 is a detail side elevation with parts broken away and vparts sectioned away showing the upper portion of one form of typewriting machine embodying my invention, the parts being shown in normal position. Fig. 2 is an enlarged, detail, vertical, sectional view showin some of the parts illustrated -in Fig. 1. Fig. 3 is'a' view that corresponds to Fig.2, except that some of the parts. shown in Fig. 2 are omitted in Fig. 3 and the work sheet holder is shown in the operative position in Fig. 3. Fig. f is an en larged' top plan view of the carriage and some of the parts carried thereby, --the righthand endof the carriage being broken -Fig. 5 is an enlarged, detail, front 'ew of the platen and some of the parts carried thereby, the 'view showing'the parts isposed as they appear in Fig. 6 and as seen from-the direction of the arrow in Fig. 6; Fig. 6 .is an enlarged detail fragmentary transverse sectional view taken on the line H'of Fig. 5 and loolci'ngin the direction of the arrow at said line,"the view showing the fasteninglatch and clamp in the closed Specification of Letters Patent. Application filed August 1,

ositions. Fig. 7 is a like view of theisarne with the latchzof the clamp released. Fig.

Patented Feb. 20, '1 912.

1.907. Serial No. 886,586.

8 is a fragmentary front view showing the right-hand end of the' platen with. the clamping plate removed- Fig. 9 is a detail rear elevation of the work sheet or card carrier or holder. detail vertical sectional view of the spacing mechanism at the left-hand end of the platen, the section beingtaken on the line y-y of Fig.11 and looking in the direction 'of the arrow at said line. Fig. 11 is an enlarged detail left-hand end view of the parts shown in Fig. 10 with the cover of the casing removed and with parts in section. Fig. 12 is an enlarged fragmentary front elevation showing the casing and some of the other parts shown in Figs. 10 and 11.

I have shown my inventionin connection with a No. 6 Remington machine though it should be understood that the invention may be embodied in other styles of typewriting machines.

Diificulty has beenencountered heretofore in providing a machine which could be Fig. 10 is an enlarged employed efliciently for feeding in cards for card indexes. One of the reasons for this is that the cards are stiff and difficult to ham dle. Another reason is that the index tabs project from the top edge of the card at different points ,in the width thereof and interfere with the proper positioning or introduction of the cards into the machine.

-By my present invention these and other difliculties are overcome and the cards may be quickly and accurately positioned in the machine and quickly and accurately fed through the machine.

The top plate 1 of the machine has upwardly extending: lugs 2 thereon which support a guide rod 3. A carriage truck 4 carries rollers 5 which cotiperate with the guide rod 3 to support andrgu'ide the carriage, comprising the truck 4 and a platen frame, in its movement across the top plate from side to side of the machine. Links 6 are pivoted to the truck at 7 and to the platen frame at 8. The platen! frame comprises a rectangular frame having end bars 9, a front cross bar 10 and a rear cross bar l1.- A platen shaft 12 is journaled in bearings in the end bars ofthe platen frame and supports a cylindrical -notaryplaten 1 3 with which the l'usual feed -1ollers13 coiiperate.

Ilhe feed roller releasing means-used" in. the

No. 6 Remington machine may be employed to cast off the feed rollers 13. The front cross bar of the platen frame carries a roller 14 which is supported on a shift rail 15 carried by upright lever arms 16 actuated in the usual manner to effect a for-ward and backward shift of the platen to change thecase position thereof. A line spacing wheel 17 is secured at the right-hand end of the platen for coiiperation with a line spacing pawl 18 pivoted at 19 to a hand 1ever 20. The hand lever is pivotedat 21 to a downwardly projecting arm 22 of a bracket on the right-hand end of the platen frame. An upwardly projecting arm 23 extends from the bracket and carries an adjustable regulating device 24 which cotiperates with a depending arm 25 on the line spacing pawl to limit the forward movement of the pawl and the upper end of the hand lever which carries it. The purpose of this device, as is well understood, is to y in the usual manner.

regulate the extent of line -spacing movement of the laten for one, two or three tooth space distances to determine the ex tent of line spacing movement eifected at each actuation of the hand lever 20. A- restoring spring 26 is connected at one end 27 to the bracket arm 22 and at its other end 28 to the upright arm of the hand lever 20;.

A paper apron 29 is pivoted on a rod 30 and is pressed toward the platen by springs 29 The usual scale plate or platen scale 31 is carried by the paper apron at thelower endthereof.

The parts thus far described constitute portions of the wellknown No. 6 Remington machine and a further detailed description thereof is deemed unnecessary. A curved paper table 32-is provided with depending studs 33 by which the table and the parts carried thereby are detachably secured to the upwardly projecting hollow studs 34 on the truck, the reduced ends 33' of the-studs 33being. seated in the hollow studs. The rear side edges of the paper table are bent downwardly to form ears 35 which are perforated .to receive a'pivot rod 36 which also. extends. through ears 37' formed on a pivoted support'38 in'orderto pivotally connect said support to the paper table. A spring 39 is coiled around the pivot rod 36 and bears at its free 'ends 40 (see Figs. 2- and 4) against the rear edge of the paper table and at its looped central portion 41 against thefront face of the pivotedsupport. The tension of this spring is exerted to normally maintain "the p'ivoted support in the full'line position shown in Fig. 2-with in'wardlypro ecting stop lugs 42 formed on the ears 3Tbearing upwardly against the cars 35 to limit 'the'rearward movement ofthe pivoted support. The 'forward swinging' movement of thepivoted 38 being provided for this purpose. The support is ta iped to receive two screw stops 4-3 at dil erent portions in the length thereof, said stops being situated at the same distance from the pivot rod 36 of the support 38 and adapted to bear against the top of the paper table as shown in Fig. 3 when the support is swung forward. The side edges of the pivoted support are formed with upwardly projecting cars 44 which are perforated to receive a pivot rod 45 that likewise extends through perforations in cars 46 formed on a pivoted'worksheet or card. carrier or holder47. A-cen; trally located screw stop 48 extends through a threaded opening in the pivoted support '38'and cooperates at its upper end with the lower side of the pivoted card holder 47 .when the parts are in their normal positions as shown'in Fig. 2, the card holder being held by gravity a ainst the upper end of the stop. A side e ge guide 19 projects upwardly from the left-hand side of the pivoted card holder and extends in a plane at right angles to the plane of the holder and at right angles to the printing line for co operation with the left-hand side edgeof the card orwork sheet.

'Two combined work sheet clamps and stops 50 are connected with the work sheet holder or carrier. Each of. these combined clamps and stops comprises a spring metal finger or clip 51 which presses down upon the upper face of the card or work sheet 52 to clamp it to the upper face of the holder and is curved at 53 to form a stop gage or abutment with which the bottom edge 52 of the card or work sheet coiiperates, it be ing understood that the edge of the card which is uppermost in Figs. 1, 2 and 3 is the bottom edge of the card. The metal which are received in threadedopenings in the, pivoted work sheet holder. The heads of the screw 56 are adapted to bear against the rear or under face-of the portion 54 of each clamp inorder to secure it in its adjusted position, the screw and slot connection affording an adjustment of the clamp and stop members toward and away from the top or rear edge of the work sheet holder.

These combined stop and clamp members are secured to. the pivotedcardholder at or near the opposite' ends thereof as shown in loops-or stop portions 53 of the members are at the same distance from the rear-edges 57 of the card carrier. The forward or 65 support is efi'ectedrby hand, a finger piece lower end 58' of each clamp member is bent Fig. 9 and should be adjusted so-that the I v outer faceoftlie core as indicated in Figs.

screw" 66, which projects through a slot 67 upw 'dly or forwardly away from the front ,fapeo the card-{holder so that the card or I wdsk-heemaygbe readily introduced beneatht he spring arm 51 and may be'moved rearwardly until the bottom edge 52 of the 'car'd cbntact's withthe loop or' stop portions 53 of the. members 50:

Tram 'the"fore'go1ng description it will be understood that 'the" stops or gages 49 and treat right angles to each other so that the ardanay 'b'e'pr'o'perly squared before it is ntroduced intbthe machine and may be int'rod'i'l'cedinto the machine properly posif'tioned -'or* sqiiared with reference to thefprintinglinekf I r r The parts' are normally disposed as shown '1 as indicated in full lines in- Fig; 3-.Inorderto introduce a worksheet o -(Sara; carried'by the holder 47 into the -ii' lachine"it 'is: merely necessary to swing the p'vo'ted support 38 forward around its pivot "Theefl ect-of this movement is first to swlngthe leading edge 52 or the lowermost '25 edgeofthe' cardbr work sheet, as it is shown p inf-tlfe -drawings, to a position adjacent to the paper table and to the paper apron 29 :{as shown in dotted lines in Fig. 2. A further inoveme'ntof the pivoted support 58 is go eflec'tive tofint-roduce the lower or leading ane-52v of the card into the machine between the'plate'n and paper apron as shown inFig. 3. The movements of the parts are 7 arrestedwhen the stops 43 abut the paper t'abl'e'as shown in Fig. 3. ihetmmgnow more particularly to Figs. 5, 6;? ends it will be seen that the sheath or outer covering of the platen is cut away from the wooden core 59 near the ends of theplaten-as indicated at 60 and that a notch 61 is formed in the sheath of the I I platen neareac'h end thereof. A segmental m'etallic 's hoe 62 is received in a countersunk phrtion63'of the 'core 59 of the platen near ea'clr ehd th'ereo'f'so that the'outer face of eachg'metallic shoe will register with the v "6 'and'7. Woodscrews 64 are employed to ""securiefthemetallic shoes in place in the face of thec'ore. The metallic shoes are each tappedlat 65 to receive the stem of'a headed aispring 68which is bent to conform to 'the'icfurv'ature of the platen core or to the curvature of the metallic shoes 62 secured The head of each screw 66 bears I thereto;

l :agaihst' a spring and secures one end of it frigidly to the metallic shoe so that the pres-' sure of the spring is exerted toward the iplaten coref The form of each spring isbest shown-in Fig. 5 from which it will be seen that there is a central apertured portion 69 therein and that a central longitudinall'y-extending spring tongue'TO projects from the body portion of the spring at one end of the slot or aperture 69, whereas the freq end of the spring member is bent to form an inwardly extending projection 71.-.

A" fastening latch 7.2 is provided with parallel flanges 73 between which a trunnionlike pivot-74 extends and is secured. The ends of the trunnion-like pivot project beneath the spring 68 at opposite sides of the recessed portion 69 thereof and are seated in depressed pocket-like portions 75 formed inthe spring. The under side of the pivot at the central portion 69 thereof is flattened as indicated at 76 for coiiperation with the central extension-or spring tongue so as to tend to hold the fasteninglatch against pivotal movement when it isin the closed position shown in Fig." 6.

When the'parts are disposed as shown in Fig. 6 the tension of the spring 68 at each end of the platen is exerted to force the bent.

end 71 thereof into a V-shaped notch 77 formed in a metal block 78;" Each block has a curved face 7 8 that bears against the .outer face of the platen core and is connected by a rivet 79 to an outwardly projecting end 80 (Fig. 5) of a plate-like clamp 81 curvature of the platen and extends throughout or substantially throughout the length thereof. The pressure of the springs 68 is therefore effective, when the parts are disposed-as shown in Fig. 6, to press the curved faces 7 8 "of the block-like member 78 against the platen core 59 and to press the clamp 81 against the face of the ,platen.

The edge 82 of the -which is bent to conform to..the

clamp is, however, adapted to swing'away from the face of the platen, as indicated in Fig. [2, against the tension of the springs 68* the blocks 78 at this time turning on the face of the platen core. As long as the fastening latches 72 are maintained in whatmay be termed the locked position shownin Fig. 6 the tension of the spring 68 is effected to press the work sheet or card clamp 81 against the surface of the platen and to afford a slight turning movement" thereof against the tension of the springsas will hereinafter more clearly appear. If, however, the latches 72 be turned to the position'indicated in Fig. 7, the free ends 71- of the springs 68 will be moved out of the notches 77 by the flanges 73 bearing againstthe faces of the metallic shoes 62 so as to effect a camming action of the free end of the springs away from the platen. latches are limited in this opening move ment by pins 72 carried by the latches and abutting the under sides of the spring tongues 70 when the parts are in the-positions shown in Fig. 7. 'At this time the clamp 81 is entirely disconnected from the platen and may .be removed therefrom. It will be seen therefore that the purpose of the springs 68 and the latches 72 is to con The nect the clamping plate 81 to the platen and to afford a spring pressure of the clamp against-the platen and yet permit it to'be turned against the tension of said springs,

and that the construction is such that when the latches. 72 are turned to the position ishown in Fig 7 the clamping plate may be,

detached from the platen'so that the 'machine may be used for ordinary work when desired. The ends of the clamp 81 near the edge 82 thereof areprovided with inwardly bent portions '83 which extend into the notches 61 in the sheath of the platen so as to extend inwardly beyond the face of the platen whether the clamp be open as shown in Fig. 3 or closed as shown in Figs. 5 and 6. Thesebent port-ions 83constitute stops for cooperation with the lower edge of the paper apron 29 or with the scale plate 31. as w'll hereinafter more clearly appear.

3 uring the forward rotation of the platen, 01..arotationthereof in the direction of the arrow in Fig. 2, the scale plate or paper apron will receive a slight movement rearwardly against the tension of the springs 29*by the paper or work sheet clamp 81 contacting therewith so that there is no 0b rstruct-ion in the rotation of the platen in :this direction. When, however, the platen receives a backward rotation iii a direction opposite to that indicated by the arrow in Fig. 2, the edge 84: where the scale plate andpaperapron join will be forced beneath the edge 82 of the work sheet clamp as shownin Fig. -2 and the inclined face of the scale plate will force or cam the clamp away from the face of the platen. The

edge 82 of the work sheet clamp and the stop members83 will also cooperate with the platen scale and paper apron to. arrest the rearward rotation of the platen, the point of arrest always being at the same p'oint.' When the clamp 81 is automatically opened and the platen arrested in the manner described the clampis held open in a position to receive the leading edge 52? of the cardwhen the latter is forced into the lmachine, past the previously cast off feed rollers 13', by a movement of the pivoted "support. 38 as indicated in Fig. 3. When *the' parts are disposed as shown in this .figure the leading edge: of the card or work sheet is beneath the clamp 81 and has been moved to a predetermined position with reference to the platenand clamp by the.

movement of the pivoted support and the pivoted work sheet Or card carrier. As the platen receives a forward rotation in the di-.

rectionof the arrows in Figs. 2 and 3 the "edge 82 of the clamp will-move'down out of coiiperation with the cam-like scale plate and'the clamp will be forced by the pressure of, the springs 68 against the face of the a cardor work sheet 1n order tocla-mp the leading'end thereof against the face ofthe platen and cause it to be fed with the platen as the latter receives a forward rotation. sufficient to overcome. the pressure of the spring fingers 51 so that if the card is moved forwardly with the platen it may be readily withdrawn from beneath the spring fingers 51.

i From what stood that the screws 43 constitute adjustable means for limiting the forward move ment of the pivoted support and that these adjustable means determine or aid'in' determining the extent of movement of the work sheet or card as it is introduced into the machine. It will also be understood that the ad ustable stops 53 which coc'vperate with the bottom edge of the work sheet or card likewise constitute adjustable means for deter-,

mining the extent to which the work sheet or card may be introduced into the machine by the swinging movement of the pivoted sup port- 38.' As the stops 53 cooperate with the bottom edge of the work sheet, the tabs or projections such as the tab (see Fig. l) sometimes employed on the top edge of index cards do not interfere with the proper The pressure of the springs 68 is has been said itwill be under-' line by a single actuation of said spacing means. e

The spacing means 1n questlon are not ordlnarllyintended for spacing between lines on the work sheet but are intended merely for moving the work sheet to the proper position, after. it has been introduced into the machineby the work sheet holder, to receive the first/line of writing. These means are shown in Figs. 4-, 1.0, 11 and 12 and comprise a toothedwheel 86 secured to the platen shaft 12 outside of the left-hand end bar 9 of the platen frame by a pin 87 which extends through openings in the hub of the.

wheel and platen shaft. A finger piece, 88 is carried by a lever 89 pivoted to turn on the platen shaft 1.2 against the tensioh of a contractile spring 90 secured at one end to a screw 91 and atits opposite end in an opening 92 in said lever. The lever is likewise free to receive a slight lateral movement on the platen shaft as indicated in dotted lines in Fig. 10 in: order to bring a tooth 93 on the lever into engagement with the toothed wheel 86. The leve'rprojects through a slot asat 95 in order that the casing may be from the 1111 line to the dotted against the toothed wheel and tends to force and thereby disengage it from the toothed wheel. The length of the slot-is determined by anadjustable stopplate 99 which conforms to the curvature of the casing and constitutes one end wall of the slot 94. This plate has a slot 100 therein for the reception of the stem of'a headed screw 101 which is threaded-into an opening in the casing and the head of the screw bears against the outer face of .thep'late 99 in order to secure it in its adjusted position. An-edge 102 on the plate is adapted to register with the index marks I03, adjacent to each of which is an 'indexnumeral 104. The stop plate 99 is shown in Fig. 12 set to limit'the forward rotationof the lever 89 ina position where it is effective to give a forward rotation to the platen corresponding. to four line space miivements, or a distance corresponding to 35,;feur teeth of the line spacing ratchet wheel --17, "although the plate may be" adjusted to afford a movement of thelever 88 to eflect a rotation of the platen from three to seven line spaces as may be desired.

. After the card has been introduced into cooperativerelation with the clamp as 'shojvn in Fig. 3'tl1e operator moves the finger piece 88 laterally, thereby moving the le- 7 ver 89 to the dotted line position in Fig. 10, in order to effect the engagement between said lever and the toothed wheel 86. A rearward movement of the finger piece to the dotted line position a, indicated in Fig. 11, is then effective to turn the platen a distance corresponding to four single line spaces, in order to move the clamping plate 81 out of'the path of the types and to bring that portion of the leading end of the card oruvork sheet which is just in the rear of the edge 82 of the clamp to the printing line by a single'operation of said lever. The operator may then proceed to write upon the card near the upper edge thereof. After the line is completed the usual line spacing mechanism at the right-hand end of the platen "may be employed to effect the spacing betweenthe lines of writing. After the card. has been written the platen may be turned rearwardly to disengagethe'clarnp the lever to the full line position in Fig. 10.

from the work sheet, which latter may then A be e loved i1r1th 1nachine at thein ducttifitgide ofthplaten.l After? th' sheet isrm'oved the platen man? tion to receive another card whic duced 'into the machine an p- 'perly pes tioned therein with refere' 'h sheet clamp 'y turningthef'sil poft 38- n ltspivot as indicated in F What I claim as new and desir by'Letters Patent, is g g 1 In a typewriting machine, nation of a ro-tative platen, a clamp carried the upper edges of cards ear nation of a rotative' platen, a: clampbairied' thereby and adapted to" clamp the upper edges of cards having t'abs," and"meari's-"for maintaining said clamp cliJ-sed during the matically opening the clamp by' a back-ward rotation of the platen,

bottom edgeof the cardl j v, N

3. In a typewritingmaehine, the coinbi thereby and adapted to clampthe upper the cardyand means for maintainingi'said clamp closed during the forward-rotation ing the clamp and arresting mplies-by a backward rotation thereof and when: the clamp reaches a given point. i y

4. In a typewriting machine, the 'c'ombiclamp carried by and rotative with the platen and operative to clamp a] eard gor work sheet against the platen, and automatically operating means for opening" said termined point in the.backward rotation rotation of the platen to any'd I th Gam 5.In a typewriting machi clamp carried thereby; andf"operative"?to clamp a card or workTsheet the platen, and a plate fixed against .rotation a nd a plate fiiz'd -withthe platen,

ark-

forward rotation of the platen and for'aut o edge 9f a card, a gag f with the platen and extendlhglbilgitudi nally thereof, the construction and'arra'ngethereby and adapted to receivehndclamp rd are said clamp closed during t e'ttr'mrdweta: I

2.-In a typewriting maehineQtH d a gage for he nation ofa rotative platenya 'clampcarried of the platen and for automatically open-3"" lob nation of a rotative platemfa springfpressed clamp and arresting the platen at'a predethereof and for affording' 'jajfreef forward nation of. a carriage,

,rangement of against theplaten, and a platenscale plate,

platen scale .to arrest said platen.

nation of a rotative platen, paper clamping plate operative to clamp a card sheet against to hold thcclamping 60 and which when in' inoperativeposition enables ,the clamping nation of a rotative .platen, and a movable work sheet receiver independent of the platen and operative to present the work sheet to the platen, said receiver having a receiving position and a delivering position and a deftnite extentof movement between the two, the extent'of movementof the receiver determining the position of the card. or-paper relatively to the platen when the card or pa per is presented to the platen by said receiver. i p

13. In a typewriting machine, the combination of a rotative platen, paper feed rollers, a movable work sheet receiver independent of the platen and which at the limit of its movement in one direction is adapted to receive the card or paper to be written upon and at the limit of its posite direction presents the leading edge of the card or paper past the feed rollers and in definite given position with reference to the platen and in a position to be taken by the platen and fedaround there with.

14. In a typewriting machine, the combi nation with! a rotative platen and paper feeding means, of an auxiliary paper or card receiver independent of the platen and mounted to receive a definite extent of move ment and to takethe material to be written upon While in one position and adapted then to be moved to another position to present the leading edge otsaid material to a definite given position withreterence to the platen; 15. In a typewriting machine, the combi= nation of a rot-ative platen, an oscillating card holder which supports a card before it is introduced into the machine and which is mounted for movement independently of the platen to introduce a card into the machine, the extent of movement of the card holder determining the position of the card relativelyto-the platen when the card is introduced into the machine, and adjustable means for determining the'extent of movement of said card holder. 16. In a typewriting machine, the combination of a carriage, a rotativ'e platen carriedthereby, an oscillating card carrier piv oted on the carriage and movable independently of the platen to. introduce a card into the machine, the extent of independent movement of the card carrier determining the position of the card relatively to the platen when the card is introduced into the machine, means carriedhb'y the card car-' rier for holding a card on said carrier, and adjustable means for determining the extent of movement of said card carrier.-

17; In a typewritin'g machine, the combination with a rotative platen and its paper feed devices, of an oscillatory card carrier. movable independently its paper feed devices I by, the oscillatory movement ,of the carrier.

the parts being such as to. render said plate v coiiperative with said clamp during the backward rotation of the platen to open the' clam p and to arrest the rotation of the platen.

7. In a typewriting machine, the combination of arotative platen, a spring-pressed clamp, which is normally maintained closed and which is carried by the platen and is operative to clamp a card or work. sheet the constructionv and arrangement of the parts being such as to render said plate co operative with said clamp to open it.

8. In a typewriting machine, the'combination of a rotative platen, a spring-pressed clampwhich is normally maintained closed and which is carried by the platen and operative to clamp a card or work sheet against the platen, and a platen scale plate, the construct-ion and arrangement of. the parts being such as to render saidplaten scale plate cooperative with said clamp to open it by a rotation of the platen in one direction and to afiord a rotation "of the platen in an opposite direction without affecting said clamp. i i

9. In a ty ewriting machine, the combia rotative platen carried thereby, a spring-pressed clamping. plate carried by and extending throughoutthe length of the platen and normally pressed into engagement with the platen, a plate carried by the carriage, the construction and arrangement'of the parts being such-as to render said platen scale plate coiiperativewith saidclamping plate during a backward rotation of the platen to release the clamping plate from its engaged position but affording a tree forward rotation of the platen to any extent, and stops carried by said clamping plate for cooperation with said scale plate during the backward rotation of the platen 10. In a typewriting machine, the combia spring-pressed or work sheet against the platen, the spring means operating also to hold the clamping plate detachably and ivotally upon the platen, and means for eecting a pivotal movement of said plate. y

11. In a typewriting machine, the cornbi-' nation of a rotative platen, a paper'clamp, ing plate operative to clamp a car or work the platen, spring mechanism which when: in working position operates plate on the platen so that itmay have a pivotal movement thereon plate to be detached from the 'platemgand means for eiiecting a pivot-aljmovement ofsaid plate. s v

l2. lnatypewriting' machine, the combimovement in the op of the platen and to introduce a card directly into the machine and into adefinite given relation with reference to said rotative platen and pa er feed devices, and spring ressed means carried by said card carrier or pressing a card 'against'the-face of the card carrier and thus holding the card in place 'th'ereo'nin the movement of the card with the carrier.

'18; In a typewriting machine, the combination of a rotative platen, an oscillatory holder movable independently of the" platen to introduce a work sheet into the machine, adjustable means for determining the extent of movement of said holder, and spring-pressed means for holdinga work sheet on said holder in the 'movement of the work sheet with the holder.

' nation of a rotative platen,

19. In a typewriting machine, the combi-' which the bottom edge of the work sheet coiiperates before the sheet is introduced into the machine, an

' a movement of said gage to introduce the means for determining machine and directly to workv sheet top 'edge. foremost into the ma chine.

20. Ina typewriting machine, the combi the bottom edge of the work sheet cooperates, means for afiording a movement of said sheet top edge emost into the machine, and adjustablethe position. of the theplaten when the work sheet relatively to into the machine by I work sheet is introduced said gage. v

21. In a typewriting machine, the combination of a rotative platen, a card carrier movable independently of the platen and movable bodily to introduce a card into the said platen, and a gage carried by said carrier.

22. In a typewritingmachine, the combination of a rotative platen, a card carrier movable independently of the platen and movable bodily to introduce a card into the machine and directly to said platen, and a gage carried by and adjustable on said carrler.

' 23. In a typewriting machine, the combination ,of a rotative platen, a card carrier movable independently of the platen to introduce a card 1nto the machine, a gage carried by and adjustable on said carrier, and adjustable means for determining the extent of movement of said carrier.

24. In a typewriting machine, the combination of a rotative platen, an oscillating v card carrier mounted to move independently of the platen, and spring clips carried by and adjustable on said card carrier and cooperativewith a card to press it against the face of the carrier and thus hold the card in place on said. carrier as the carrier is moved to introduce the card 'into themachine.

25. In a typewriting machine, the combicarrier and thus a gage with (1 means foraiiording 7 of the platen, nation of a rotative platen, a gage with which chine, the 7 clips and gages coiiperating with the bottom edge of a card, and adjustable means for deried by said carriage,

nation: of a rotative platen, an oscillating card carrier mounted to move independently and combined 'clipl s and gages of theplaten, carried by and adjustable on said card can? rier and cotiperative with a card to press it against the face of tly'arrier and thus hold the card in place on said carrier as the car-L rier is moved to introducethe card into the machine, the gage portions of said combinedJ clips and gages cooperating with the bottom edge of a card. I

.26. In atypewriti-ng machine, the combi-v an oscillating nation of a rotative platen, card carrier mounted to move independently of the platen,spring clips carried by and ad justable on said card carrier andcotiperativewith a card to press it against the face, of the hold the card-in place on said carrier as the carrier is moved to introduce the card into the machine, and adjustable meansfor determining the extent of said independent movement of said. carrier. 27'. In a typewriting' machine, the combination of a rot'ative platen, an oscillating card carrier mounted to move independently and combined clips carried by and adjustable on said card car rier and cotiperative with a card to' hold it in place'o'n'said carrier as the carrier is moved to introduce the card into the magage portion of said combined termining the extent of said independent movement of said carrier.

28.' In a typewriting machine, nation of a carriage, ried by said carriage, a pivoted member cara plate-like card carrier carried by said "pivoted member, the pivoted member and card carrier being movable t0 intr'oducea card into the machine, and adjustable means for determining the extent of movement of said card carrier.

and gages pivoted member and" 9 the 00mb1=- V a iotative platen car-' 29. In a typewriting machine, the combinationot a rotative platen, a card carrier mounted for movement independently of the platen and for bodily movement toward and away from the platen to introduce a card directly into the machine, and spring means for restoring said carrier to normal position.

30. In a typewriting machine, the combination of 'a .rotative platen, a work sheet holder movable independently of the platen to introduce a work sheet into the machine, adjustable means for determining the extent of movement of said holder, and spring means for returning said holderto normal position.

81. In a typewriting machine, the combination of a rotative platen, a gage with which the bottom edge of the work sheet cooperates, means tor affording a movement of said gage independently of the platen toin- 13o troduce the work sheet top edge foremost into the machine, and

turning said gage to normal position.

' nation of a ingsaid pivoted 32. In a typewriting machine, the oombi rotative platen, an oscillating card carrier mounted to move independently of the platen,'spring clips carried by and adjustable on saideard carrier and cooperative with a caid to press it against the face of the-carrier and thus hold the cal-din place on said carrier as the carrier is'moved to in troduce the card into the machine, and spring means for returning said card carrier to normal. position.

33. In a typewriting machine, the combination of a carriage,a rotative platen carried by said carriage, a pivoted member carried by said carriage, a spring for returnmember to normal position on the carriage, and a plate-like card car- 'rier pivoted on said pivoted member, and

having a bodilygmovemnt toward and ,awayfrom the platen, the pivoted member and card carrier being movable to introduce a card 1nt0 the machine,-

L Ina typewritlng n1ach1ne,. the combination of ascarria'ge,,a ,rotative platen carthe. carriage, v

carriedby said pivoted member, the pivoted ried by said carriage, a pivoted member carried bysaidearriage, a spring for returning said pivoted member and a plate-like card carrier member and card carrier being movable to introduceia card into the machine,- andadjust-able means-for determining the extent of movements of said pivoted 'member and card carrier. 1

35. In a typewriting machine, the combin'ation of a rotative platen, a card carrier movable independently given rela tionto the prints'aid card carrier. i

36. In a typewriting mach1ne,the combination of a rotative platerna pivoted platecarried by said carrier and .7 duce a card directlyinto the machine and into'coiiperative relation with the platen,

andigages carried by said carrier and-cooperative with two, edges of a card which are, at right angles -to each other. e

38. In a typewriting machine, the combination of a rotative platen, 'a' card car spring means for renation of a rotative platen,

rotation of the platen for to normal position on thereof, means whereby the card carrier is rendered elfec-' tive to introduce a card directly into the machine and in a ing line, and aside edge gage carried by rier movable independently thereof to intro-- duce a card into the machine top edge foremost, and gages carried by said card carrier, one of said gages being cotiperative with the bottom edge of the card and another gage being cooperative with a side edge of the card. 7 t

39. In a typewriting machine, the combination of a rotative platem'a work sheet clamp carried'by said platen for clamping a work sheet to the platen to rotatetherewith, and means independent of the platen for moving a work sheet into cotiperative relation-with said clamp 40. In a typewriting machine, the combia card clamp carried .by said platen and operative to clamp a card orworksheet against the platen, and a card carrier movable independently ofthe platen to introduce atcard into the machine and into cotiperative relation with said card clamp.

41.111 a typewriting machine, the combination of arotative platen, a card clampoperative to clamp a card or work sheet against the platen, means controlled by the automatically opening and closing said card. clamp, and

.a card carrier movable independently of the platen to introduce a card into the machine and to position it in lation with said card clamp. 42. In a typewriting machine, the com- 'bination of a rotative platen, a clamp carried thereby and operative to clamp a card or work sheet against the platen, means for maintaining said clamp closed during the forward rotation of the platen and for autocotiperative rematically opening the clamp by a backward rotation "of the platen, and a card carrier movable independently of the platen to int-roduce a card into the machine and into c0- operative relation with said clamp. 43, In a typewriting machine, thecombinationof a rotative platen,.a clamp carried thereby and operative to clamp a card or work sheet againstthe laten,-me ans for maintaining said clamp c osed during the forward rotation of the platen and for automatically opening the clamp by a backward rotation thereof and for then arresting the platen, and aboard carrier movable independently of the platen to introduce a card into themachine and into cooperative relation withsaid clamp.

44. In a typewriting machine, the com? bination of a ro ative platen, a spring pressed clamp carr ed thereby and operative toclamp a card 'or work sheet against the platen, .a plate .fixed against rotation wlth the platen and eoi iperative with said clamp to open it, andav card carrier movable independently of the platen to introduce a'card into the machine and into coiiperative relation with said clamp.

65 1 holder.

45. In'a typewriting machine, the combination of a rotative platen, a spring pressed clamp carried thereby and operative to clamp a card or work sheet against 5 the, platen, a plate. fixed against rotation ,with the 'platenand cooperative with said clamp during the backward rotation of the ,platen' to open the clamp, and means for arresting the rotation of the platen when 3o tive with said clamp to open it, and a card carrier movable independently of the platen to introduce a card into the machine and into cotiperative relation with said clamp.

, 47. ,In a typewriting machine, the combi- --nation of a carriage, a rotative platen carried thereby, a spring pressed clamping plate carried by and extending throughout the length of the platen "and normally pressed into engagement with the platen, a

platen scale plate carried by the; carriage andcoijperative with said clamping plate during a backward rotation of the platen to release the clamping plate from itsengaged position but affording a free forward rotation of the platen to any extent, stops carried by said clamping plate. for cooperation with said scale plat-e'during the backward rotation of the platen to arrest the platen, and a card carrier movable independently .40 of the platen to'introduee a card into the machine and into cooperative relation with said clamp.

481 111 a typewr1ting machine, the combi-' nation of a ,rotative platen, a clamp carried thereby and operative to clamp a card or work sheet against the platen, means'for maintaining said clamp closed during'the -forward rotation of the platen and fortuitomatically opening the clamp by a backward I rotation of the platen, anda card carrier movable to introduce a card into the machine, the extent of movement of the card carrier determining the position of the card relatively to the platen.

49. In a typewriting machine, the combination of a rotative platen, a clamp carried thereby, means for maintaining said clamp closed during the forward rotation of the platen and for automatically opening the M O clamp by a backward rotation of the platen,

' a work sheet holder movable independently of the platen to'introduce the work sheetinto the machine, and. adjustable means for determining the extent of movement of sa d 50.- In a typewriting machine, the combination of a rotative platen, a ,clamp carried thereby, means for: maintaining said clamp closed during the forward" rotation of the platen and for automatically opening.

- the clamp by a backward rotation-of the platen and for arresting the platen aft'er'theclamp has'been open'ed,"a work sheet holder movable independently of the platen to' introduce the work sheet into the machine. and adjustable means for determining the extent of movement of said holder. 51. In a typewriting' machine, the conibination of a rotative platen, a spring pressed clamp carried by and rotative fwith the platen, means for opening said clamp and arresting the platen, a work sheet holder movable independently of' the platen to introduce the work sheet into the machine, and adjustable means for determiningthe extent of movement of said holder.

' 52. In a typewriting machine, the combination of a rotative platen, a spring pressed clamp carried thereby, a plate fixed against rotation with the platen and extending'longitudinally thereof and eotipera'tive with an edge of said"clam'p,to opensaid clamp, a work sheet holder movable independently of the platen to introduce the work sheet into the machine, and adjustable means for holder. v

53. In a typewriting machine; the combination of a rotative platen, a spring-pressed clamp which is normally maintained, closed and which is carried by the platen,la platen scale coo erative with said clamp to vopen it, a Wort sheet holder movable independ:

ently of the platen to introduce the work sheet into the machine, and adjustable means for. determining the extent of movement of said holder. V I 54. In a typewriting machine, the combination of a carriage, a rotative platen carried thereby, a spring-pressed clamping plate carried by and extending throughout the length of the platen and normally pressed into engagementfwith the platen, a platen scale plate carried. by the carriage and coiiperative with said clamping plate during a backward rotation of the platen to release the clamping plate from itsengaged position but afi'ordinga free" forward rotation of the platen to any extent, stops carried by said clamping plate, fqreotiperation with said scale plate during, the backward rotation of theplaten to arrest the platen, a work sheet holder movable independently of the platen to introduce the work sheet into the machine, and adjustable meansfor, determiningthe extent of,movemen t Ofsaid holder. p I p l v 55. In a typewriting machine, the: complnation of a rotative platen, a clamp carried thereby, means f01 -I 11 8Il1 1tfll11111g said clamp determining the extent of movement of said closed during the forwardrotation of the platen and for automatically opening the clamp by a backward rotation of the platen, a gage with which ,the bottom edge'of the work sheet cooperates, and meansv for af-' fording' a movement of said gage to introduce the worksheet into the" machine.

s56. In a-typewriting machine, the combination of a rotative platen, a clamp car pressed clamp carried by and rotative with the platen, means for openingsaid clamp and arresting the platen, a gage with which the bottom edge of the work sheet cooperates, and means for affording a movement of said gage independently of the platen to introduce the work sheet into the machine.

58. In a typewriting machine, the combination of a rotative platen, a spring pressed clamp carried thereby, a plate fixed against rotation with the platen and extending longitudinally thereof and cooperative with the advancing edge of said clamp to open it, a gage with which the bottom edge of the work sheet cooperates, and means for affording a movement of said gage to introduce the work sheet into the machine.

59. In a typewriting machine, the combination of a rotative platen, a springpressed clamp which is norm ally maintained closed and which is carried by the platen, a

"platen scale cooperative with said clamp to open it, a gage with which the bottom edge of the work sheet cooperates, and means for affording a movement of said gage to introduce the work sheet into the machine.

, r 60. In a typewriting machine, the combination of a carriage, a rotative platen carried thereby, a spring pressed clamping plate carried by and extending throughout the length of the platen and normally pressed into engagement with the platen, a ,plate n. scale plate carried by the carriage and cooperative with said clamping plate during a backward rotation of the platen to release the clamping plate from its engaged position but affording a free forward rotation'of the platen to any extent, stopscarried by said clamping plate for cooperation withsaid scale plate during the backward rotation of the platen to arrest the platen, a gage with which the bottom edge of the work sheet cooperates, and

means for afi'ording a movement of said gage to introduce the work sheet into the machine. I

61. In a typewriting machine, the combination of a rotative platen, a clamp carried thereby and operative to clamp'a card or work sheet against the platen, means for v maintaining said clamp closed during the forward rotation of the platen andfor automatically opening the clamp byia backward rotation of the platen, an oscillating card carrier mounted to move independently of the platen, and spring clips carried by said card carrier and cooperative with a card to hold it in place on said carrier as the carrier is moved to introduce a card into the machine.

62. In a typewriting machine, the combination of a rotative platen, a spring pressed clamp carried by and rotative with the platen and operative to clamp a card or work sheet against the platen, automatically operating means for opening said clamp and arresting the platen, an oscillating card carrier mounted to move independently of the platen, and spring clips carried by said card carrier and cooperativewith a card to hold it in place on said carrier as the carrier is moved to introduce-a card into the machine.

63; In a typewriting machine, the combination of a rotative platen, a spring pressed'clamp which is normally maintained closed and which is carried by the platen and operative 'to clamp a card or work sheet against the platen, a platen scale cooperative with said clamp to open it, an oscillating card carrier mounted to move independently of the platen, and spring cups carried by said card carrier and cooperative with a card i to hold it 1n place on said carrier as the car rier is moved to introduce a card into the machine.

64. In a typewriting machine, the combination of a carriage, a rotative platen carried thereby, a spring-pressed. clam ing plate carried by andqextending throng out the length of the platen and normally pressed into engagement with the platen, a platen scale plate carried by the carriage and cooperative with said clamping-plate during a backward, rotation of the platen' to release the clamping plate from its engaged position but aflording a free forward rotation of the platen to any extent, stops carried by said clamping plate for cooperationwith said scale'plate during the backward rotation'of the platen to arrest the K platen, an.

oscillating card carrier mounted to move independently of the platen, and spring clips carried by said card carrier and cooperative with a card to hold it in place on said carrier as the carrier is moved to introduce a card into the machine.

65. In a typewriting machine, the combination of a platen carrying a work sheet clamp, an oscillating work sheet carrier-ciao mounted. to move independently of the platen to introduce a work sheet into the machine and into coiiperative relation with said clamp, and combined Worksheet clips and gages carried by and adjustable'on said Work sheet carrier.

66. In a typewriting machine, the combination of a platen carrying a card clamp, a card carrier movable independently of the platen to introduce a card into the machine in a given relation to the printing line and in cooperative relation with said card clamp, and a gage carried by said carrier and cooperative with a side edge of a card.

67. In a typewriting machine, the combination of aplaten, a work sheet clamp carried thereby, a work sheet carrier movable independently of the plat'en t 'o introduce a work sheet into, the machiife and into cooperative relation wit-h said clamp, and gages carried by said carrier and codperative with two edges of the worksheet at right angles to each other. I

68-. In a typewriting machine, the combination of a platen, a work sheet clamp carried thereby, a work sheet carrier movable independently of the platen to introduce a .work sheet into the machine and into 00- operative relation with said clamp, and gages carried by-said carrier, one of said gages cooperating with the bottom edge of a work sheet and another of said gages co.

operating with a side edge of said'work sheet.

69. In a 'typewriting machine, the combi nation of a platen carrying a work sheet clamp, an oscillating work sheet carrier mounted to move independently of the platen to introduce a work sheet into the machine and into cooperative relation with said clampfcombined work sheet clips and gages carried by said 'work sheet carrier, and means for affording an adjustment of said combined clip's'and gages onthe carrier.

70. In a'typewriting machine, the combination of a rotative platen, a toothed wheel connected therewith, a hand actuated pawl movable around the axis of the platen to turn the'toothed wheel and platen and .movable longitudinally of th eMplatento move into and out of cooperativeengagement-with said'toothed wheel, a; spring-whiohQ-tends to move said'pawl outfofi-engagement with said toothed ;wheel,-- 1 and; a: $eeond spring which tends to. saidf, pawl. around the axis ofthe platen. v

71. In a typewriting machine, the .combi nation of a: rotative plateIna platen shaft, 9,. hand lever mounted to turn onsaidplaten, shaft aiid to .move axially thereoflgm engaging tooth on said lever, and a toothed wheel fixed to turn withv the platen,,said engaging tooth. being. adapted to beg-moved 111120 and out of engagement with; said "gaging tooth being ad'apte toothed wheel by an axial movement of said lever, and said lever having an extent of turning motion equal to apluralityiof line spaces.

72. In a typewriting machine, thecombination of a rotative platen, a platen shaft,

a hand lever mounted to turn on saidplaten shaft and to move axially thereof, an: en-

gaging tooth on said lever, andatoothed wheelfixed to turn withthe laten, saidI'end to be moved into and out of engagement 'withl ="said toothed wheel by an axialmoveinent ofsztid lever, and adjustable -stop imeansE.-"-witli which said lever is adapted tolcofiperate n! its movement onefdirection aro'und platen shaft, said lever-having an extenl 'of turning motion equal to -a pluralitjt' -ef line spaces. I p I 73. In a typewriting machine, the eombi nation of a carriage, a rotative platenicarried thereby,' a platen shaft, a, casing se cured to the carriage and having an open} ing therein, a hand lever which pro ects through said opening in 'the casing-and which 'is mounted to turn around the platen shaft and to move axially thereof, anda.

toothed wheel fixedly connected withkthfel platen and contained within'said casing, an axial-movement of said-leverv being efi'ective to throw the lever intojand out ofi engage v ,mnt with said toothed wheel and a rotative movement of said'lever around its platen shaft beingv effective to rotate the platen when said lever is in engagementwith said toothed wheel.

74. In a typewriting machine, the combination of a rotative platen, a clamp carried thereby, means for maintaining said clamp closed duringthe forward rotation of the platen and for automatically opening the clamp by a backward rotation of the platen, and platen rotating means. operable by a single operation to bring the first writing line position on thework sheet to the printingiline when the platen is rotated from a posltion where said clamp is maintained open.

7 5. In a typewriting machine, the combination of a rotative platen, a clamp carried thereby, means for maintaining said clamp closed during the forward rotation of the platen and for automatically opening the clamp by a backward rotation of the platen and for arresting the platen after the clamp has been opened, and platen rotating means operable by a single operation to bring the andwheresaid clamp is maintained open; I '76. Ina typewriting machine, the combi nation of a rotative platen, aspringpressed clamp carried by and rotative with the platen, meansfor opening said clamp and first'writing line position on the work sheet to the printing line when the platen is rotated .from' a :position where it is arrested,

arresting the platen at a predetermined point in the backward rotation thereof and for affording a free forward rotation of the platen to any desired extent, and platen rotating means operable by a single operajtion to "bring the first writing line position onthe work sheet to the printing line when the platen is rotated from a position where, sald elainp is maintained open.

" 77; In atypewriting machine, the combination of a i-otative platen, a spring pressed- ;elamp carried thereby, a plate fixedagainst rotation with the platen and extending longitudinally thereof and cooperative with an edge of saidolanip to open it, and platen rotating means operable by a single opera tion tobring the first writing line position on the work sheet to theprinting'line when v the platen is rotated from a position where said- Clampis maintained opem 78. In a typewrlting machine, the com.

binati'on of a rotati e platen, a spring pressed clamp carried thereby, a plate fixed against rotation with the platen and C0- operative with said clainp during the basin Ward rotation of the platen to open the clamp and to arrest'the rotation. of the platen, and platen ;rotating; 1neans operable by a single operation tohriiig the first writ-- I ing line position on the worksheet to the printing line i when platen is rotated platen scale and cooperative with said clamping plate from a position where said elampjis maintained open.

In a typeWri-ting rnaehine, the combination of a carriage, a rotatlve platen car' ried" thereby, a spring pressed clamping pressed into engagement. with the platen, a late carried by the carriage during a backward rotation of the platen to reiease the clamping plate from its engaged position but alfording a free forward rota- 7 tion of the platen to any extent, stops carri'ed by said clamping plate for cooperation with said scale plate during the'bacKward rotation of the platen to arrest said platen,

and platen rotating means operable by a single operation. to bring the first writing line position on the work sheet to the pr nting line when the platen is rotated from a position where said clamp is maintained Signed at the borough of Manhattan, city of New York, in the county of New, York,

and State of New York, this 29th day of July AID. 1907. CHARLES W. WALKER.

Witnesses "J. B. Dnnvns,

M. FrHAnnwnnnn.

plate carried by and extending throughout the length of the platen and normally 

